S/390: Replace rtx_equal_p with reg_overlap_mentioned_p in splitter check.

gcc/ChangeLog:

2016-05-27  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md (2x risbg splitters): Use
	reg_overlap_mentioned_p instead of rtx_equal_p.

From-SVN: r236814

gcc/ChangeLog

+2016-05-27  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+	* config/s390/s390.md (2x risbg splitters): Use
+	reg_overlap_mentioned_p instead of rtx_equal_p.
+
 2016-05-27  Dominik Vogt  <vogt@linux.vnet.ibm.com>
 
 	* combine.c (make_compound_operation): Take known zero bits into

gcc/config/s390/s390.md

@@ -3926,7 +3926,7 @@
 		 (ashift:GPR (match_dup 3) (match_dup 4))))]
 {
   operands[5] = GEN_INT ((1UL << UINTVAL (operands[4])) - 1);
-  if (rtx_equal_p (operands[0], operands[3]))
+  if (reg_overlap_mentioned_p (operands[0], operands[3]))
     {
       if (!can_create_pseudo_p ())
 	FAIL;
@@ -3954,7 +3954,7 @@
      (clobber (reg:CC CC_REGNUM))])]
 {
   operands[5] = GEN_INT ((1UL << UINTVAL (operands[4])) - 1);
-  if (rtx_equal_p (operands[0], operands[3]))
+  if (reg_overlap_mentioned_p (operands[0], operands[3]))
     {
       if (!can_create_pseudo_p ())
 	FAIL;